Wu Peng won the girls race in the school sports meeting last week.A. 100 metresB. 100-met

问题补充：

Wu Peng won the girls race in the school sports meeting last week.

A. 100 metres

B. 100-metres

C. 100 metre

D. 100-metre

答案：

A. 100 metres

B. 100-metres

C. 100 metre

(答案→)D. 100-metre

解析：修饰名词是一个数词加单位的结构，通常用连字符-将修饰的单词连在一起，相当

与一个形容词，连字符连在一起的单词不可用复数形式，故选D。